Fluttering
v. 飄動(dòng)( flutter的現(xiàn)在分詞 ); （心）快速跳動(dòng); 振翼, 拍翅膀
? 同義詞
??? 情景例句
Marketing promotion.
市場(chǎng)推廣。
Be my guest.
請(qǐng)便、別客氣
What was the date?
（昨天）是幾月幾日？